Home / 21,272.58-29,356.17-11,840.94

Finding the Fourth Proportional to 21,272.58, 29,356.17 and 11,840.94

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Solution

The fourth proportional to 21,272.58, 29,356.17 and 11,840.94 is: 16,340.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.58 : 29,356.17 = 11,840.94 : x
  2. Step 2: Convert to fraction form
    21,272.58/29,356.17 = 11,840.94/x
  3. Step 3: Cross multiply
    21,272.58x = 29,356.17 × 11,840.94
  4. Step 4: Simplify right side
    21,272.58x = 347,604,647.60
  5. Step 5: Solve for x
    x = 347,604,647.60/21,272.58
  6. Step 6: Final answer
    x = 16,340.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.